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Fixing a 500 Error When ajaxSubmit Meets TXNewsletters
How to troubleshoot a server error that appears only after eForm ajaxSubmit and TXNewsletters are used together on the same project.
A 500 error that appears only when ajaxSubmit and TXNewsletters coexist usually points to an execution conflict, a mail-layer collision, or a parser side effect introduced by one of the integrations.
How to Debug It
- disable TXNewsletters temporarily and confirm ajaxSubmit works again
- inspect PHP logs instead of relying on the blank 500 response alone
- check whether both integrations load overlapping mail or request handlers
- test the same form without AJAX to separate frontend and backend causes
With older stacks, the fastest route is to reduce the page to one working integration, then add the second piece back only after the logs clearly show where the failure starts.
Fixing a YAMS Language Switcher That Fails Only in Firefox
Why YAMS may switch languages correctly in most browsers but fail on the home page in Firefox, and how to trace the mismatch.
Tracking Down YAMS-Related White Screens in MODX 1.0.10
Why a small custom snippet can suddenly produce a white screen on a YAMS-enabled project and how to isolate the real conflict.